Posts

All the articles I've posted.

• LeetCode 337 House Robber III

  4 Aug, 2026

  Solutions for LeetCode 337, medium, tags: tree, dfs, dynamic programming, binary tree.

• System Design - How the QUIC Protocol Works

  4 Aug, 2026

  How QUIC works: connection establishment, 0-RTT handshake, stream multiplexing without head-of-line blocking, loss detection, congestion control, and connection migration. A walkthrough of the protocol that powers HTTP/3.

• LeetCode 41 First Missing Positive

  28 Jul, 2026

  Solutions for LeetCode 41, hard, tags: array, hash table.

• LeetCode 767 Reorganize String

  28 Jul, 2026

  Solutions for LeetCode 767, medium, tags: hash table, string, greedy, sorting, heap, counting.

• System Design - How Linux System Calls Work

  28 Jul, 2026

  How Linux system calls work: the x86-64 syscall instruction, kernel entry/exit, the syscall dispatch table, vDSO optimization, and a source code walkthrough from the Linux kernel.

• LeetCode 1584 Min Cost to Connect All Points

  27 Jul, 2026

  Solutions for LeetCode 1584, medium, tags: array, union find, graph, minimum spanning tree.